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Self-guided circular saw automates woodworking

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A circular saw is a must-have tool for anyone who wants to do even basic woodworking. But getting clean, straight cuts is a skill that takes practice to develop. To automate the process in order to perform clean cuts every time with zero effort, Red Tie Projects created this self-guided circular saw.

This is exactly what it sounds like: a circular saw that moves across the table on its own. It rides on hardened steel rods, ensuring repeatable cuts. It also moves at a nice, steady pace, resulting in clean edges. A projected laser line shows the user exactly where the cut will fall on the work piece. A small control panel lets the user turn the machine on, start a cut, stop a cut, turn the laser on, and move forward/backwards.

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On the mechanical side, this build is as simple as possible. The circular saw, which is just a handheld Makita corded model, mounts to a plate with four bearing blocks. Those bearings fit onto hardened steel rods running the length of the table. A spring-loading retraction mechanism pulls the power cord taut to keep it out of the way.

An Arduino Uno board controls the single stepper motor through a driver board. That stepper pulls the saw carriage back and forth with a belt. A relay module controls power to going to the saw. Limit switches let the Arduino detect when the saw reaches the ends of the rails. The laser line projection comes from a standalone off-the-shelf unit. The machine’s controls are standard arcade buttons.

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While this saw is now only capable of doing one task, it can do it very well. For someone that performs similar cuts over and over again, it is a perfect tool.

The post Self-guided circular saw automates woodworking appeared first on Arduino Blog.

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What do you think?

Written by Quad Oner


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